I have a RIR hen that lays about every 3 days. They just keep getting bigger. All single yolks. She is her 2nd year laying. These are from the last week. I should create a breeding program around her. haha. Post your big eggs for all to see!
In that case you may get blue or you may get olive, assuming the ee hens carry 2 copies of the blue gene. This is a very simplified answer, there are other factors but this will generally be the case.
Probably has olive egg genetics, a brown over blue cross. He could then supply a brown or blue gene to his offspring. Meaning it would all depend on what he was bred to.